Electric condenser.



E. DENIPORT. ELECTRIC UONDBNSBR. APPLIUATION FILED MAY 2a. 190s.

934,714; l Patented sept. 21,1909.

v Zawwage/Z/ EDOUARD DENIPORT, 0F SURESNES, FRANCE.

ELECTRIC coNDENsER.

specification of Letters Patent Patented Sept. 21, 1909.

Application led May 23, 1908. Serial No. 434,569.

To all 'whom it may concern.'

Be it known that I, EDOUARD DENIPORT, a citizen of the Republic of France, and resident of Suresnes, Seine, France, have invented certain new and useful Improve' bulk while at the same time, the said plates are protected from the eifects of any external influences or improper handling, suoli plates being fitted within a box forming Vone of the current connections.

In the accompanying drawing wherein I have illustrated the preferred -orm of my invention, Figure l is a perspective view of the box (in part dismounted) which serves as an envelop or easin for the conducting plates and which also orms one of the supply connections for the current of the electr1c circuit into which the condenser is to be inserted. Fig. 2 is a plan view of one of the parts forming one element orl series of condenser plates.; Fig. 3 is the corresponding View o'f one of the parts forming the other element or series of condenser plates. Fig. 4 is a vertical section of the condenser as a whole, on a somewhat larger scale.

The two condenser elements are formed of equal. sized rings a, of paraiiined paper, mica, or other like material. These rings have a hole c in the Centerand are provided on one side with tin or other metal lining in accordance with the usual practice in making condensers.

The parts a (F ig. 2) forming the dielectric of one element or series of plates have a conducting plate lining d of tin, which projects inward slightly beyond the periphery of the holev c, in the center and extends outward.

only a distance which is short of the outer edge of the ring, as shown. The edge which is thus left uncovered forms an insulator between the outer portions of adjacent plates. On the other hand, the parts b (Fig. 3)

constituting the other dielectric of the ele.

v"inent or series of plates are also provided with a metal lining e, which projects slightly beyond the outer .edge of the ring and which 'band as above described.

ntrial.

does not extend inward quite as far as the periphery of thel hole c in the center. Around the hole c there is thus left uncoveied an annular strip which forms an insulator between the inner portions of adjacent plates. g

The rings a and I) are superimposed one upon another, one ring of each element or series of conducting plates being placed alternately on top of a ring of the other element or series (Fig. 4). It will thus be seen that` all the metal linings, or plates d, forming one of the elements 'are continued inward beyond the hole c, in the center of the paralined paper, mica, or the like, that theyl may be put into rconnection by bending -or turning down the metal portions which extend beyondthe peripheral edge of the hole can be put into electrical communication by l turning down the projecting portions of metal and binding them together on the o'ui'- side by a band ot' metal; or by covering the outside edges with metallic sheets. The'elgments or series ot-plates thus formed are itted into a metal box f which protects them.

the center, serves as a guide for the arrangement of the condenser as a whole and is united at and by its edge h with the outer v connected portions of the plates c, and the said edge acts as an external connecting The other series' of plates d isvconnected -with a socket vf (Fi 1) forming part of a metallic disk j whic surrounds the central core ring g in the bottom of the box The disk j rests on the bottom of the box]a and is insulated from it by the interposition of a disk le, of-ebonite or other suitable mate- Between the socket z' and the center core ring g is interposed a sleeve Z of suitable insulating materia An'insulating: disk m (Fig. 1) identical with the piece k, is .interposed between the upper condenser plates and the metal cover a, which latter closes the incasiug. box f, the

. This box, which has a raised core ring g in l outer an top edge of said box being turned over as shown in Fig. t, to hold the cover n securely in position. y

The elements or series of plates of the condenser may be connected with external wires for example, by means of the binding screws 0, p, one of which is fitted on the cover 'a and is in communication with the se` ries of plates e While the other binding screw is mounted on the disk j and is in communication with the series of plates d. The binding screw 79 passes through the bottom of the box and is provided with a bushing y of insulating material.

From the above it will loe seen that a condenser constructed ,in accordance with my invention is protected against any injurious external action, is of reduced bulk, and can be operated in rotation, (for example, in high tension magnetos) by mounting the socket g on the end' of any spindle or shaft.

Having now fully described my said invention, what I claim and desire to secure by Iietters Patent is 1. In a condenser of the character described the combination ,of a plurality of Superposed Washers of dielectric material lined at their surface with a lining of conducting material projecting alternately at the outer edge and at the inner edge of the washers and extending respectively inward and outward only to a certain distance short of the inner and outer edge respectively, the projecting edges of the said conducting linings bein; electrically connected both at the the inner periphery thereof, and means for conducting current to both sets of washers, substantially as and for the purpose set forth.

2. In a condenser kof the character vdescribed the combination of two sets of alternately superposed washers of dielectric material lined on one of their surfaces with a layer of conductingmaterial, the lining of the one'of the sets projecting beyond the outer edge of the washer and only extending short of the inner edge thereof and the lining of the other set projecting beyond the inner edge of the washers and only extending short of the outer end thereof, a metallic plate applied `tothe bottom of the said of washers and provided sleeve adapted to frictionally engage thel and to fold uponfrictionally pile of two sets openinglof the said washers each ot er those parts of the lining which project fromone set of Washers into the saidinner opening and a box adapted to engage the outer surface of the said washers and to fold upon each other the projecting parts of the conducting lining of the other set of washers, means for insu- '.'lating the said metallic plate and its central sleeve from the said box and means for conductlng current to the said vbox and to the with a central at their inner edge sulated from contiguous sheets whereby the 'connected j said sheets,

said metallic plate, substantially as and for the purpose set forth.

3. In a condenser of the character de scribed the combination of two sets alternately superposed Washers of dielectric material, lined on one of their surfaces with a layer of conducting material, the lining of the Washers of one set projecting beyond the outer edge of the Washer and extending only short of the inner edgethereof and the lining of the other set of washers projecting beyond the inner edge cf the Washers and extending only short of the outer end thereof, ainetallic base plate applied to the bottom of the two sets of washers and provided with a central sleeve adapted to project through and frictionallyengage the central opening of said washers and to fold upon each other the projecting parte of the conducting lining of one of the sets of washers, an insulating base plate applied against the bottom of the said metallic plate and provided with a central insulating sleeve adapted to engage the metallic sleeve of said metallic plate and having only. half the height of the latter, an insulating top plate arranged upon thel top of the said pile of washers and provided with a central sleeve adapted to engage the central sleeve of said metallic base sleeve and to project therein on half its height, a metallic box having an outer wall adapted to frictionallj,7 engage the outer surface of saidwashersand to fold upon each other the projecting parts of the other set of washers, a bottom adapted to engage the said insulating base plate and a central sleeve adapted to frictionally engage the central sleeves of said top and bottom insulating plates, a metallic cover ar ran ed on the said top insulating plate and hel in position by the bent upper edge of the said box, a binding post secured to.said cover and a second binding post secured to said metallic base plate and means for insulating the said second binding post from the bottom of said box, substantially as and for the purpose set forth.

4. A condenser of the character described,

comprising a series of superimposed annular` metal sheets, each alternate sheet being electricallyv connected at its outer edge, the remaining sheets being electrically connected and each sheet being insheets are insulated from each other and means for conducting current to each series of connected sheets, substantial-ly l as described. j

5. A condenser of the character described, comprising a series of superimposed annular metal sheets, a metal sleeve extending within a metal casing surrounding said sheets, each alternate sheet being electrically connected with said sleeve, the remainin sheets being electrically connected with sai casing, and each sheet being insulated from contiguous sheets whereby the connected sheets are insulated from each other, and means for conducting current to each series of sheets.

-6. A condenser of the character described, comprising a series of superimposed annular metal sheets, sheets of insulation .interposed between said sheets, each alternate metal sheet extending outward beyond the-outer edges of the contiguous 'insulating sheets, the remaining metal sheet-s extending inward beyond the inner edges of contiguous insulating sheets, the said projecting edges being electrically connected and the said inner edges being electrically connected, and means to conduct current to each series of connected4 sheets, substantially as described.

. 7. A condenser of the character described, comprising a series of superimposed annular metal sheets, sheets of insulation interposed between said sheets, each alternate metalv sheet extending outward beyond the outer edges of the contiguous insulating sheets, the remaining metal sheets extending inward beyond theinner edges of contiguous insulating sheets, the said projecting edges` being bent or downturned against each other, and means to conduct current to each series of connected sheets, substantially as described.

8. A condenser of the character described, comprising a series of superimposed annu-4 lar metal sheets, sheets ot' insulationinterposed between said sheets, each alternate metal sheet extending outward beyond the outer edges of the contiguous insulating sheets, the remaining metal sheets extending inward beyond the inner edges of contiguous insulating sheets, the said projecting edges being bent or downturned against each other, a metal sleeve in contact with the inner bent or downturned edges and a surrounding metal casing in contact with the outer bent or downturned edges, means for insulating said sleeve from said casing and means tor conducting current to each series of connected sheets, substantially as described.

In testimony whereof l have hereunto set my hand in presence of two witnesses.

EDOUARD DENIPORT. Witnesses:

- AD. STURM, H. C. CoXE. 

